CARTIER TORTUE LADY'S WATCH N°1734. External case back no. 5935 - 8276 - 5558. Platinum case, diamond-set lugs. Bezel entirely set with diamonds. Light grey dial, Roman numeral hour markers. Hand-wound mechanical movement (EW calibre). Textile strap, on a partially set folding clasp signed.S.G.D.G, No. 840. Plexiglas glass. Circa 1920. Dimensions: 23 x 24 mm. Gross weight: 23g. A platinum and diamonds wristwatch mechanical movement, by Cartier. Circa 1920.